Institute Newton C. Braga

Circuit Bench

Optical Audio Link Receiver (CB13886E)
27 MHz Transmitter (CB14008E) This circuit was found in a Japanese publication from the 1970s. The...
Telephone Call Indicator (CB17398E)
This circuit, found in 2002 documentation, triggers LEDs when a phone call is received. The LEDs...
Flip-Flop Using NOR Gates (CB142)
The R-S flip-flop shown here uses two NOR gates and is set and reset by positive pulses applied to...